68812575 has 72 divisors (see below), whose sum is σ = 126621360. Its totient is φ = 32947200.

The previous prime is 68812543. The next prime is 68812577. The reversal of 68812575 is 57521886.

It is not a de Polignac number, because 68812575 - 2⁵ = 68812543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68812577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 773131 + ... + 773219.

It is an arithmetic number, because the mean of its divisors is an integer number (1758630).

Almost surely, 2^68812575 is an apocalyptic number.

68812575 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

68812575 is a deficient number, since it is larger than the sum of its proper divisors (57808785).

68812575 is a wasteful number, since it uses less digits than its factorization.

68812575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 171 counting only the distinct ones).

The product of its digits is 134400, while the sum is 42.

The square root of 68812575 is about 8295.3345321331. The cubic root of 68812575 is about 409.7848861649.

The spelling of 68812575 in words is "sixty-eight million, eight hundred twelve thousand, five hundred seventy-five".